# SslSenderTrustStoreHolder.java

    /*
     *  Copyright (c) 2024, WSO2 LLC. (https://www.wso2.com).
     *
     *  WSO2 LLC. licenses this file to you under the Apache License,
     *  Version 2.0 (the "License"); you may not use this file except
     *  in compliance with the License.
     *  You may obtain a copy of the License at
     *
     *    http://www.apache.org/licenses/LICENSE-2.0
     *
     *  Unless required by applicable law or agreed to in writing,
     *  software distributed under the License is distributed on an
     *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     *  KIND, either express or implied.  See the License for the
     *  specific language governing permissions and limitations
     *  under the License.
     */
    package org.apache.synapse.transport.nhttp.config;

    import java.security.KeyStore;

    /**
     * The SSL Sender TrustStore Holder class to store the client trust store's configurable details.
     */
    public class SslSenderTrustStoreHolder {

        private static volatile SslSenderTrustStoreHolder instance;

        private SslSenderTrustStoreHolder() {}

        private KeyStore keyStore;
        private String location;
        private String password;
        private String type;

        public static SslSenderTrustStoreHolder getInstance() {

            if (instance == null) {
                synchronized (SslSenderTrustStoreHolder.class) {
                    if (instance == null) {
                        instance = new SslSenderTrustStoreHolder();
                    }
                }
            }
            return instance;
        }

        public static void resetInstance() {

            instance = null;
        }

        public KeyStore getKeyStore() {

            return keyStore;
        }

        public void setKeyStore(KeyStore keyStore) {

            this.keyStore = keyStore;
        }

        public void setLocation(String location) {
            this.location = location;
        }

        public String getLocation() {
            return this.location;
        }

        public void setPassword(String password) {
            this.password = password;
        }

        public String getPassword() {
            return this.password;
        }

        public void setType(String type) {
            this.type = type;
        }

        public String getType() {
            return this.type;
        }

        public boolean isValid() {
            return keyStore != null && location != null && !location.isEmpty() &&
                    password != null && !password.isEmpty();
        }
    }